F.K.A.E.J. de Thümen [1-2300, plus extras]

University of Illinois Herbarium
Catalog #: ILL00076190
H. W. Ravenel s.n.
Microsphaera friesii Lév.
USA, South Carolina, Aiken; Aiken

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00059773
H. W. Ravenel s.n.
Microsphaera friesii Lév.
United States, South Carolina, Aiken, Aiken;

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0011896
H.W. Ravenel s.n. 00 August 1876
Microsphaera friesii Lév.
United States, South carolina, Aiken;

Purdue University, Kriebel Herbarium
Catalog #: PUL00029543
HW Ravenel s.n.
Microsphaera friesii Lév.
America, South Carolina, Aiken, Aiken;

USDA United States National Fungus Collections
Catalog #: BPI 556939
Ravenel H. W. s.n.
Microsphaera alni (DC.) G. Winter
United States, South Carolina, Aiken

USDA United States National Fungus Collections
Catalog #: BPI 1034667
Ravenel, H. W. #s. n.
Microsphaera friesii (Lév.) Sacc.
United States, South Carolina, Aiken